Não informado. Animal Sciences and Industry Research Report. Oklahoma Agricultural Experiment Station.
Citação do estilo Chicago (17ª ed.)Não informado. Animal Sciences and Industry Research Report. Stillwater, Okla: Oklahoma Agricultural Experiment Station.
Citação MLA (8ª ed.)Não informado. Animal Sciences and Industry Research Report. Oklahoma Agricultural Experiment Station.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.